Example usage for com.google.gwt.query.client GQuery removeAttr

Introduction

In this page you can find the example usage for com.google.gwt.query.client GQuery removeAttr.

Prototype

public GQuery removeAttr(String key) 

Source Link

Document

Remove the named attribute from every element in the matched set.

Usage

From source file:gwtquery.plugins.lazyload.client.LazyLoad.java

License:Apache License

/**
 * Lazy load selected pictures, only actually fetching the file when the
 * picture becomes visible in the user's viewport.
 *
 * Pictures must have a "data-original" attribute indicating the URL to load,
 * and they should have a correct size already.
 *
 * @param options configuration options.
 * @return this./*from w w  w  .j  a v  a  2  s .  co  m*/
 */
public LazyLoad lazyload(final Options options) {
    if (get().getLength() == 0) {
        return this;
    }

    final Options opt = options.copy();

    final Updater updater = new Updater(get(), opt);

    each(new Function() {
        @Override
        public void f(Element e) {

            final GQuery current = $(e);

            current.on(opt.getEventName(), new Function() {

                @Override
                public void f(final Element e) {

                    current.off(opt.getEventName(), this);

                    final String data = $(e).attr("data-original");
                    if (data == null) {
                        return;
                    }
                    $("<img/>").bind(Event.ONLOAD, new Function() {
                        @Override
                        public void f(final Element img) {
                            current.hide().attr("src", $(img).attr("src"));
                            if (opt.getEffect() == null) {
                                current.show();
                            } else {
                                opt.getEffect().f(e);
                            }
                        }
                    }).attr("src", data);
                    current.removeAttr("data-original");
                }
            }).attr("src", opt.getPlaceholder());
        }
    });

    if (opt.getContainer() == null) {
        final HandlerRegistration registration = Window.addWindowScrollHandler(new Window.ScrollHandler() {
            @Override
            public void onWindowScroll(Window.ScrollEvent event) {
                updater.update();
            }
        });
        updater.setHandler(registration);
    } else {
        final Function handler;
        opt.getContainer().on("scroll", handler = new Function() {
            @Override
            public boolean f(final Event e) {
                updater.update();
                return true;
            }
        });
        updater.setContainerHandler(handler);
    }

    updater.update();

    return this;
}

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